ok i tried this , with a good weight set to need help on the last 2,3 with a spotting partner...afet 1h 15,20 we were into set 4 flies and lat...I think this workout is too long... I never go over 1:30 maybe im just slow :)

Workout Journal at one spot and water bottle at the other. I workout at a pretty busy gym (especially at the beginning of the week) and always use this method. The key is not take forever to finish the superset. Do the exercises and move on!